Abstract
This article shows how the perpetrators of the genocide constructed the ideology of hatred and genocide against the Tutsi by distorting the history of Rwanda and the relations between the Hutu, the Tutsi and the Twa of Rwanda. They also appropriated the Hamitic and Bantu ideologies produced by the colonizers. Methodologically, the writings used include archives, publications and founding texts that convey this ideology and other documents that criticize them. This article also shows how the Habyarimana regime chose to refer to the divisionist and destructive messages of the Kayibanda regime which preceded it with the aim of exterminating the Tutsi and retaining power.